Four 1,3-bis(1,2,4-triazol-1-yl)propane-based metal complexes tuned by competitive coordination of mixed ligands: synthesis,solid structure,and fluorescence |
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| Abstract: | Four 1,3-bis(1,2,4-triazol-1-yl)propane (btp)-based transition metal complexes, {Zn(btp)3] ?(ClO4)2} n (1), Zn(btp)2(dca)2] n (2), Zn(btp)(NCS)2] (3), and Mn(btp)2(NCS)2] n (4), have been obtained by introducing small anionic coligands and structurally characterized by single crystal X-ray diffraction, elemental analysis, IR spectra, thermogravimetric curves, and solid luminescence spectra. Structural determinations reveal that the polymeric triple-stranded chain for 1 without coligand is changed into 1-D double-stranded chains for 2 and 4, and discrete binuclear structure for 3. Compared with 1, the mixed-ligand complexes are moderately destabilized for 2 and 4, and slightly enhanced for 3. Additionally, the four solid complexes exhibit strong emissions, suggesting their potential applications as luminescent materials. |
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| Keywords: | 1 3-Bis(1 2 4-triazol-1-yl)propane Mixed-ligand Crystal structure Fluorescent property |
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